64505227 has 2 divisors, whose sum is σ = 64505228. Its totient is φ = 64505226.

The previous prime is 64505183. The next prime is 64505239. The reversal of 64505227 is 72250546.

64505227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64505227 - 2⁷ = 64505099 is a prime.

It is not a weakly prime, because it can be changed into another prime (64505257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32252613 + 32252614.

It is an arithmetic number, because the mean of its divisors is an integer number (32252614).

Almost surely, 2^64505227 is an apocalyptic number.

64505227 is a deficient number, since it is larger than the sum of its proper divisors (1).

64505227 is an equidigital number, since it uses as much as digits as its factorization.

64505227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 64505227 is about 8031.5146143178. The cubic root of 64505227 is about 401.0497986467.

The spelling of 64505227 in words is "sixty-four million, five hundred five thousand, two hundred twenty-seven".